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EP 3 756 322 A1

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(43) Date of publication: 30.12.2020 Bulletin 2020/53 (21) Application number: 18710483.1 (22) Date of filing: 15.03.2018

(51) International Patent Classification (IPC):  H04L 29/06(2006.01) H04L 12/707(2013.01) H04W 88/16(2009.01) (86) International application number: PCT/EP2018/056557 (87) International publication number: WO 2019/161937 (29.08.2019 Gazette 2019/35)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 22.02.2018 EP 18382105 (71) Applicant: Telefonaktiebolaget LM Ericsson (publ) 164 83 Stockholm (SE)

(72) Inventors: MOLLA, Marc 28002 Madrid (ES) ARRIBAS FERRERO, Juan 28229 Villanueva del Pardillo (ES) ARROUTBI BRAOJOS, Sergio 28943 Fuenlabrada - Madrid (ES) GARVAYO DE LARA, Jose Antonio 28723 Pedrezuela (ES) MARTIN GARCIA, Carlos 05003 Avila (ES) GIMENEZ SEGURA, Juan Antonio 28703 San Sebastian de los Reyes (ES) MARTINEZ LOPEZ, Celestino 30012 Murcia (ES) ALVAREZ DOMINGUEZ, Rodrigo 28016 Madrid (ES) TORRES GONZALEZ, Daniel 19200 Azuqueca de Henares, Guadalajara (ES) (74) Representative: Valea AB  Box 7086 103 87 Stockholm 103 87 Stockholm (SE)